The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Zdziennicka, Anna

doi:10.1016/j.apsusc.2008.10.030

Cited by 23 publications

(13 citation statements)

References 48 publications

(126 reference statements)

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“…Because the difference between the adhesion and the cohesion work is equal to the coefficient of spreading of a liquid or solution over the solid surface, knowledge of not only the changes of the water surface tension under the influence of surfactant but also of its work of adhesion to solid surface is very important for determining the wettability criterion of a given solid [1,3]. It appeared that the work of adhesion of aqueous solutions of different kinds of surface-active agents and their mixtures to polytetrafluoroethylene (PTFE) surfaces does not practically depend on the composition and concentration of solution and is two times higher than the critical surface tension of its wetting [2][3][4][5], which in turn is higher than the surface tension of PTFE determined from contact angles for n-alkanes [4,[6][7][8]. In contrast to PTFE it appeared that the adhesion work of such kind of solution to the polymethylmethacrylate (PMMA) surface depends on the concentration, composition, and the kind of the surface-active agent, and that the critical surface tension of PMMA wetting is considerably lower than its surface tension and even the Lifshitz-van der Waals component of this tension [9,10].…”

Section: Introductionmentioning

confidence: 99%

Behavior of cationic surfactants and short-chain alcohols in mixed surface layers at water–air and polymer–water interfaces with regard to polymer wettability

Zdziennicka¹,

Jańczuk²

2010

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Behavior of cationic surfactants and short-chain alcohols in mixed surface layers at water–air and polymer–water interfaces with regard to polymer wettability

Zdziennicka¹,

Jańczuk²

2010

Journal of Colloid and Interface Science

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“…In general, the slopes of conventional surfactants such as nonionic surfactant TX-100, [ 21 ] anionic surfactant SDDS, [ 23 ] and cationic surfactants CTAB, [ 34 ] CPyB, [ 34 ] C 12 (EDMAB) [ 19 ], and BDDAB 19 are all negative, demonstrating that they absorb at the PMMA-water interface via hydrophobic interactions. Meanwhile, the conventional surfactants exhibit slopes of about −0.3, which indicates that they are likely to tile at the PMMA–liquid interface with about 1/3 of the adsorption amounts at the air–liquid interface.…”

Section: Resultsmentioning

confidence: 99%

“…As the surfactants’ concentration continues to increase, the contact angle and interfacial tension change little. Zdziennicka et al investigated the wettability of cationic surfactants (CTAB, CPyB), [ 20 ] nonionic surfactants (TX-100, TX-114) [ 21 , 22 ] and anionic surfactants (SDDS, SHS) [ 23 ] on the PMMA surface. It is found that the contact angles and the interfacial free energy of PMMA–liquid ( γ SL ) of these conventional surfactants gradually decreased with the increase in surfactant concentration, which indicates that the surfactants will adsorb on PMMA surface by hydrophobic interactions.…”

Section: Introductionmentioning

confidence: 99%

Wettability of a Polymethylmethacrylate Surface by Extended Anionic Surfactants: Effect of Branched Chains

Jiang

Zhang

et al. 2021

Molecules

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The adsorption behaviors of extended anionic surfactants linear sodium dodecyl(polyoxyisopropene)4 sulfate (L-C12PO4S), branched sodium dodecyl(polyoxyisopropene)4 sulfate (G-C12PO4S), and branched sodium hexadecyl(polyoxyisopropene)4 sulfate (G-C16PO4S) on polymethylmethacrylate (PMMA) surface have been studied. The effect of branched alkyl chain on the wettability of the PMMA surface has been explored. To obtain the adsorption parameters such as the adhesional tension and PMMA-solution interfacial tension, the surface tension and contact angles were measured. The experimental results demonstrate that the special properties of polyoxypropene (PO) groups improve the polar interactions and allow the extended surfactant molecules to gradually adsorb on the PMMA surface by polar heads. Therefore, the hydrophobic chains will point to water and the solid surface is modified to be hydrophobic. Besides, the adsorption amounts of the three extended anionic surfactants at the PMMA–liquid interface are all about 1/3 of those at the air–liquid interface before the critical micelle concentration (CMC). However, these extended surfactants will transform their original adsorption behavior after CMC. The surfactant molecules will interact with the PMMA surface with the hydrophilic heads towards water and are prone to form aggregations at the PMMA–liquid interface. Therefore, the PMMA surface will be more hydrophilic after CMC. In the three surfactants, the branched G-C16PO4S with two long alkyl chains exhibits the strongest hydrophobic modification capacity. The linear L-C12PO4S is more likely to densely adsorb at the PMMA–liquid interface than the branched surfactants, thus L-C12PO4S possesses the strongest hydrophilic modification ability and shows smaller contact angles on PMMA surface at high concentrations.

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“…The PTFE is a hydrophobic material described by low surface energy and high contact angle (>110 degrees) to water-based compounds. 17 The water contact angle further increases due to the porosity of extended PTFE and can reach up to 160 degrees. 18 Several strategies have been employed aiming at improving the wetting capacity of hydrophobic materials and thereby protein adsorption (e.g., bombardment with ions, irradiation with ultraviolet light, and plasma discharge).…”

Section: Discussionmentioning

confidence: 99%

Surface Functionalization of PTFE Membranes Intended for Guided Bone Regeneration Using Recombinant Spider Silk

Tasiopoulos

Petronis

Sahlin³

et al. 2019

ACS Appl. Bio Mater.

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Alveolar bone loss is usually treated with guided bone regeneration, a dental procedure which utilizes a tissue-separation membrane. The barrier membrane prevents pathogens and epithelial cells to invade the bone augmentation site, thereby permitting osteoblasts to deposit minerals and build up bone. This study aims at adding bioactive properties to otherwise inert PTFE membranes in order to enhance cell adherence and promote proliferation. A prewetting by ethanol and stepwise hydration protocol was herein employed to overcome high surface tension of PTFE membranes and allow for a recombinant spider silk protein, functionalized with a cellbinding motif from fibronectin (FN-silk), to self-assemble into a nanofibrillar coating. HaCaT and U-2 OS cells were seeded onto soft and hard tissue sides, respectively, of membranes coated with FN-silk. The cells could firmly adhere as early as 1 h post seeding, as well as markedly grow in numbers when kept in culture for 7 days. Fluorescence and scanning electron microscopy images revealed that adherent cells could form a confluent monolayer and develop essential cell−cell contacts during 1 week of culture. Hence, functionalized PTFE membranes have a potential of better integration at the implantation site, with reduced risk of membrane displacement as well as exposure to oral pathogens.

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The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Cited by 23 publications

References 48 publications

Behavior of cationic surfactants and short-chain alcohols in mixed surface layers at water–air and polymer–water interfaces with regard to polymer wettability

Behavior of cationic surfactants and short-chain alcohols in mixed surface layers at water–air and polymer–water interfaces with regard to polymer wettability

Wettability of a Polymethylmethacrylate Surface by Extended Anionic Surfactants: Effect of Branched Chains

Surface Functionalization of PTFE Membranes Intended for Guided Bone Regeneration Using Recombinant Spider Silk

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